That's more than the $6.2 billion in online sales for Black Friday, up almost 24 percent on a year ago.
Shoppers had already spent $531 million as of 10 a.m. ET.
"First #CyberMonday I have participated in and I AM HERE FOR IT!" Website outage tracker DownDetector.com also reported that Walmart Inc's website had some problems. Or did you tap out from Black Friday?
More consumers have shown an increasing preference for buying holiday gifts online, diluting the importance of Black Friday when shoppers had traditionally flocked to stores for the best deals.
Cyber Monday is upon us, and if you're hunting for deals in tech, gadgets, computer components, and more, we have a list of some of the best deals out there. If you're looking to do all of your shopping online rather than in stores this year, we've scoured the depths of Amazon, Walmart, REI, Best Buy, and more to bring you the best Cyber Monday offers as they go live - all the way through Green Monday. It's not a direct discount like Target's deal, but if you shop at Kohl's frequently, it can really pay off.
This tablet is $20 off as a continuation of Amazon's Black Friday deals.
Shares of Amazon.com were up as much as 2.5 percent in premarket trading, while Macy's, Gap and Target also rose.
And while that 15 percent discount may not sound like a huge deal, it's stacked on top of existing sale prices, and it even includes Amazon's products.
The National Retail Federation forecast USA holiday retail sales, including online, in November and December will increase between 4.3 percent and 4.8 percent over 2017, for a total of $717.45 billion to $720.89 billion.